Ionization-Structure-Reactivity Relationships: Multiple Metal-Metal and Metal-Heteroatom Bonds

该奖项在无机，生物无机和有机化学计划提供了对金属-金属相互作用的研究继续支持博士。亚利桑那大学化学系的Lichtenberger说。 研究中的系统包含四重和三重金属-金属键，金属-金属配置超出反键δ轨道的占领，和非键合和弱相关的通过空间和通过配体的金属-金属相互作用。 金属-金属配合物含有多种桥连和非桥连配体，并代表与关键结构扰动相关的广泛的供电子和吸电子效应。 也包括具有与轴向位置配位的弱配体和强配体两者的络合物。 高分辨率Hel/Hell价态和高精度X射线芯光电子能谱将用于研究气相和凝聚态物质。 该项目包括进一步发展工具能力。 金属-金属相互作用有助于许多物质的结构、稳定性和反应性，并影响重要的化学、催化和材料过程。 将开发独特的仪器来提供这些相互作用的详细电子结构信息。

This award in the Inorganic, Bioinorganic, and Organometallic Chemistry Program provides continued support for research on metal-metal interactions by Dr. Dennis L. Lichtenberger of the Chemistry Department, University of Arizona. Systems under investigation contain quadruple and triple metal-metal bonds, metal-metal configurations beyond occupation of the anti-bonding delta orbital, and non-bonding and weakly-associated through-space and through-ligand metal-metal interactions. The metal-metal complexes contain a variety of bridging and non-bridging ligands and represent a broad range of electron-donating and electron-withdrawing effects associated with key structural perturbations. Complexes with both weak and strong ligands coordinated to the axial position are also included. High-resolution Hel/Hell valence and high precision X-ray core photoelectron spectroscopy will be used to study both gas phase and condensed species. The project includes further development of instrumental capabilities. Metal-Metal interactions contribute to the structure, stability, and reactivity of many species and influence important chemical, catalytic, and materials processes. Unique instrumentation will be developed to provide detailed electronic structure information on these interactions.